virtio_pci: pass vq info as an argument to vp_setup_vq()

Instead vp_setup_vq() storing vq info directly to vp_dev->vqs, let the
caller provide a pointer to store the info to. This prepares
vp_setup_vq() to be able to store admin queue info as well.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Message-Id: <20240716113552.80599-9-jiri@resnulli.us>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Author: Jiri Pirko

drivers/virtio/virtio_pci_common.c

@@ -197,7 +197,8 @@ static struct virtqueue *vp_setup_vq(struct virtio_device *vdev, unsigned int in
 				     void (*callback)(struct virtqueue *vq),
 				     const char *name,
 				     bool ctx,
-				     u16 msix_vec)
+				     u16 msix_vec,
+				     struct virtio_pci_vq_info **p_info)
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	struct virtio_pci_vq_info *info = kmalloc(sizeof *info, GFP_KERNEL);
@@ -225,7 +226,7 @@ static struct virtqueue *vp_setup_vq(struct virtio_device *vdev, unsigned int in
 		INIT_LIST_HEAD(&info->node);
 	}
 
-	vp_dev->vqs[index] = info;
+	*p_info = info;
 	return vq;
 
 out_info:
@@ -320,7 +321,8 @@ static struct virtqueue *
 vp_find_one_vq_msix(struct virtio_device *vdev, int queue_idx,
 		    vq_callback_t *callback, const char *name, bool ctx,
 		    bool slow_path, int *allocated_vectors,
-		    enum vp_vq_vector_policy vector_policy)
+		    enum vp_vq_vector_policy vector_policy,
+		    struct virtio_pci_vq_info **p_info)
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vdev);
 	struct virtqueue *vq;
@@ -338,7 +340,8 @@ vp_find_one_vq_msix(struct virtio_device *vdev, int queue_idx,
 		msix_vec = VP_MSIX_CONFIG_VECTOR;
 	else
 		msix_vec = VP_MSIX_VQ_VECTOR;
-	vq = vp_setup_vq(vdev, queue_idx, callback, name, ctx, msix_vec);
+	vq = vp_setup_vq(vdev, queue_idx, callback, name, ctx, msix_vec,
+			 p_info);
 	if (IS_ERR(vq))
 		return vq;
 
@@ -405,7 +408,8 @@ static int vp_find_vqs_msix(struct virtio_device *vdev, unsigned int nvqs,
 		}
 		vqs[i] = vp_find_one_vq_msix(vdev, queue_idx++, vqi->callback,
 					     vqi->name, vqi->ctx, false,
-					     &allocated_vectors, vector_policy);
+					     &allocated_vectors, vector_policy,
+					     &vp_dev->vqs[i]);
 		if (IS_ERR(vqs[i])) {
 			err = PTR_ERR(vqs[i]);
 			goto error_find;
@@ -445,7 +449,7 @@ static int vp_find_vqs_intx(struct virtio_device *vdev, unsigned int nvqs,
 		}
 		vqs[i] = vp_setup_vq(vdev, queue_idx++, vqi->callback,
 				     vqi->name, vqi->ctx,
-				     VIRTIO_MSI_NO_VECTOR);
+				     VIRTIO_MSI_NO_VECTOR, &vp_dev->vqs[i]);
 		if (IS_ERR(vqs[i])) {
 			err = PTR_ERR(vqs[i]);
 			goto out_del_vqs;